** Description changed: + SRU Request + + Systems with Optimus (Intel+NVIDIA GPUs) can have problems with the + backlight (private bug #1290694) and when detecting and switching to + different resolutions (private bug #1285062). Using the intel driver + (with SNA) works better than the current solution (the modesetting + driver). + + [Impact] + * Backlight control and resolution changes fail on some Optimus systems. + + [Test Case] + * Select performance mode from the nvidia-settings panel and try to adjust the backlight or to cycle through the available resolutions + - Expected: the backlight can be adjusted, and changing the resolution works. + - Bad behavior: the backlight can't be adjusted and changing the resolution can some times result in a black screen. + + [Regression Potential] + * Low, as the intel driver is more feature complete than modesetting. + + [Other Info] + * N/A + + + -- + Running the proprietary nvidia drivers in an Optimus config works (Intel+NVIDIA) can discover two issues: 1. Cannot adjust brightness in the guest session (private bug #1290694) [Test Case] - * Switch to guest session and adjust brightness from settings or hotkey or command line - - Expected: Can adjust the brightness - - Bad behavior: Cannot adjust brightness + * Switch to guest session and adjust brightness from settings or hotkey or command line + - Expected: Can adjust the brightness + - Bad behavior: Cannot adjust brightness 2. Black screen while changing the resolution (private bug #1285062) but switching to the guest session results in a black screen. [Test Case] - * Go to display setting, set rotation to counterclockwise/clockwise/180 degrees and click apply - - Expected results: Can switch display rotation successfully - - Actual results: Black screen when switching display rotation + * Go to display setting, set rotation to counterclockwise/clockwise/180 degrees and click apply + - Expected results: Can switch display rotation successfully + - Actual results: Black screen when switching display rotation
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1326257 Title: [nvidia-prime] Cannot adjust brightness in guest session and results in black screen while changing the resolution To manage notifications about this bug go to: https://bugs.launchpad.net/nvidia/+bug/1326257/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
